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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | SSAC / Littelfuse |
| Manufacturer Product Number | ASTUD3 |
| Description | TDR; 0.1 s...100 min; Knob/DIP; 9...110V DC; 1A SPST-NO; Multi-Function |
| Datasheet | Download Datasheet |
The Littelfuse SSAC ASTUD3 is a solid-state multi-function timer module for 9-110 V DC, with a 0.7 A solid-state output (10 A inrush). Its delay is adjustable from 0.1 seconds to 100 minutes.
A 17.5 mm universal timer: four switches on the face choose one of five functions (delay on make, recycling, single shot, interval, delay on break) and one of four time ranges, and the knob sets the delay within the range.
Output: 1A SPST-NO. Voltage drop about 1.5 V at full load. Repeat accuracy: ±1% or 50 ms, whichever is greater. Setting accuracy: ±2% or 50 ms, whichever is greater; ±2% over temperature and voltage. Reset time: 300 ms. Supply tolerance: -0% / +20% of nominal.
It is din rail or surface mounted, with push-on terminal blocks, up to #14 awg terminals. It operates from -40 to +60 °C and stores from -40 to +85 °C.
| Category | |
| Manufacturer | SSAC / Littelfuse |
| Model | ASTU |
| Output Technology | Solid State |
| Timing Function | Multi-Function |
| Delay Time | 0.1 s...100 min |
| Time Ranges | 0.1-10 s, 1-100 s, 10-1000 s, 1-100 min (switch-selected multiplier) |
| Timing Adjustment Method | Rotary knob and DIP switch |
| Timing Initiate Method | Input Voltage or Control Switch, by function |
| Available Timing Functions | Delay on make, recycling, single shot, interval, delay on break |
| Contact Configuration | 1A SPST-NO |
| Load Current (A) | 0.7 |
| Input Voltage | 9...110V DC |
| Termination Style | Push-on terminal blocks, up to #14 AWG |
| Mounting Type | DIN Rail or Surface Mount |
| Operating Temperature | -40...+60 °C (-40...+85 °C) |
| Setting Accuracy (%) | ±2% or 50 ms, whichever is greater; ±2% over temperature and voltage |
| Repeatability (%) | ±1% or 50 ms, whichever is greater |
| Recovery Time (ms) | 300 |
| Maximum Peak Current (A) | 10 |
| Input Operating Range | -0% / +20% of nominal |
| On-State Voltage Drop (V) | 1.5 |